308 Industrial Park Road
Starkville, MS 39759 USA
Ph:
(662) 323-9538 FAX: (662) 323-6551
RRK-88
Roof Radial System
for DX 88 Vertical Antenna
INSTRUCTION MANUAL
General Information
This radial kit consists of four sets of resonant
radial wire assemblies totalling 14 radials for 7
bands, 40 through 10 meters. The DX-88
antenna will also work on the 80 meter band
using this radial kit. Each radial is made from
7/23 Copperweld®, and is attached to the
antenna base with solder lugs.
Installation
Second, install the support mast within the
tripod. The support mast should be 15/8 inch
O.D. by approximately 3 feet long (41mm x
lm) steel or heavy-wall aluminum.
Install your OMNI DX-88 vertical antenna to
your support mast. Tune the antenna to the
desired frequencies before installation by
following the example or graphs in your DX-
88 manual. Attach a ground wire as shown in
Figure 1, Detail A, and tighten the two U-bolts
securely.
The OMNI DX-88 vertical, when mounted on
a roof or mast, should be mounted in the clear
away from trees and power lines.
Do not install this antenna near any power line.
Not only is it dangerous to put up and take
down, the power lines could cause excessive
noise to be received by the radio connected to
this antenna.
Also, do not attach other antennas or antenna
supports to this antenna or to its resonant radial
system.
Attach the insulators to each free end of the
radial wires. Fold back the free end of the
radial wire and lightly twist together. DO NOT
CUT OFF EXCESS WIRE UNTIL YOU ARE
SURE ALL BANDS ARE WORKING
PROPERLY. Adjust the wire lengths to those
shown in Table 1.
Cut the 5/32 inch polyethelyne rope into
lengths appropriate for your installation. The
supplied length of 100 feet will make 14
sections each 7 feet long. Insert these rope
sections through the insulators and tie.
WARNING
Installation of this product near power
lines is dangerous!! For your safety,
follow the installation directions.
Attach each of the 4 wire assemblies to the
bottom of the antenna base, using the No. 10
bolts installed on the base. Tighten securely.
First, obtain a short sturdy tripod, such as a
Radio Shack® 3 foot tripod, and attach it to
your roof using 1/4 inch or 5/16 inch lag
screws (not supplied). The lag screws should
be screwed into the roof joist where possible,
or you should add a reinforcing board under
the roofing plywood for greater strength.
Copperweld® is a registered trademark of Copperweld Bimetallic
Group
Radio Shack® is a registered trademark of the Tandy corporation
